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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_xpressive.acknowledgments"></a><a class="link" href="acknowledgments.html" title="Acknowledgments">Acknowledgments</a>
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<p>
      I am indebted to <a href="http://boost.org/people/joel_de_guzman.htm" target="_top">Joel
      de Guzman</a> and <a href="http://boost.org/people/hartmut_kaiser.htm" target="_top">Hartmut
      Kaiser</a> for their expert advice during the early states of xpressive's
      development. Much of static xpressive's syntax is owes a large debt to <a href="http://spirit.sourceforge.net" target="_top">Spirit</a>, including the syntax for
      xpressive's semantic actions. I am thankful for <a href="http://boost.org/people/john_maddock.htm" target="_top">John
      Maddock</a>'s excellent work on his proposal to add regular expressions
      to the standard library, and for various ideas borrowed liberally from his
      regex implementation. I'd also like to thank <a href="http://moderncppdesign.com/" target="_top">Andrei
      Alexandrescu</a> for his input regarding the behavior of nested regex objects,
      and <a href="http://boost.org/people/dave_abrahams.htm" target="_top">Dave Abrahams</a>
      for his suggestions regarding the regex domain-specific embedded language.
      Noel Belcourt helped porting xpressive to the Metrowerks CodeWarrior compiler.
      Markus Schöpflin helped to track down a bug on HP Tru64, and Steven Watanabe
      suggested the fix.
    </p>
<p>
      Special thanks are due to David Jenkins who contributed both ideas, code and
      documentation for xpressive's semantic actions, symbol tables and attributes.
      Xpressive's ternary search trie implementation is David's, as is the number
      parser example in <code class="literal">libs/xpressive/example/numbers.cpp</code> and
      the documentation for symbol tables and attributes.
    </p>
<p>
      Thanks to John Fletcher for helping track down a runtime assertion when using
      xpressive with Howard Hinnant's most excellent libc++.
    </p>
<p>
      Finally, I would like to thank <a href="http://boost.org/people/thomas_witt.html" target="_top">Thomas
      Witt</a> for acting as xpressive's review manager.
    </p>
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<td align="right"><div class="copyright-footer">Copyright © 2007 Eric Niebler<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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